Answer in brief
CVE-2026-80801 records a Unknown severity vulnerability in nfc: microread: validate target discovery payload lengths. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=cfad1ba87150e198be9ea32367a24e500e59de2c <c6de4241f2efbbab286efbb84a9c7190298b3052 || >=cfad1ba87150e198be9ea32367a24e500e59de2c <92a6f0201bb68391b5eba1b3f330af007d7323b6 || >=cfad1ba87150e198be9ea32367a24e500e59de2c <cb298672282421159e53ab311fe49d204c8a52da || >=cfad1ba87150e198be9ea32367a24e500e59de2c <18f02354ed229b8e4561b580812d026e7eb29c85 || >=cfad1ba87150e198be9ea32367a24e500e59de2c <e6397fe7b8b5ef18e051f49612d40ff476c5f7d9 || >=cfad1ba87150e198be9ea32367a24e500e59de2c <d0902a7c454326c6384c614226ab8987f3fd425d || >=cfad1ba87150e198be9ea32367a24e500e59de2c <dabfa26a208e56f4d8dbf26fddc48f188bdb0649 || >=cfad1ba87150e198be9ea32367a24e500e59de2c <953963b9ac5eecbb316617d337bfaa3d731e3c5e || >=cfad1ba87150e198be9ea32367a24e500e59de2c <25519469972ef57c3edb1805dabd6c5612b90211 | c6de4241f2efbbab286efbb84a9c7190298b3052, 92a6f0201bb68391b5eba1b3f330af007d7323b6, cb298672282421159e53ab311fe49d204c8a52da, 18f02354ed229b8e4561b580812d026e7eb29c85, e6397fe7b8b5ef18e051f49612d40ff476c5f7d9, d0902a7c454326c6384c614226ab8987f3fd425d, dabfa26a208e56f4d8dbf26fddc48f188bdb0649, 953963b9ac5eecbb316617d337bfaa3d731e3c5e, 25519469972ef57c3edb1805dabd6c5612b90211 |
| Linux/Linuxgeneric | 3.9 | Not reported |
Published upstream
Sep 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 4, 2026
In the Linux kernel, the following vulnerability has been resolved: nfc: microread: validate target discovery payload lengths microread_target_discovered() parses target discovery payloads from skb->data according to the HCI gate. The fixed field offsets and UID copies were checked only against the destination nfc_target buffers, not against the actual skb length. Validate that each gate-specific payload contains the fixed fields and UID bytes before reading or copying them.
Quoted source text, attributed separately from HOL analysis.